Wrench.



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MARSHALL DAYTON TILLMAN, OF WABASH, INDIANA.

WRENCH.

SPECIFICATION formingpart of Letters Patent No. 681,591, dated August2*?, 1901.

i Application filed February 8, 1901. Serial No. 46,553. (No model-l Toall whom t nitty concern:

Be it known that I, MARSHALL DAYTON TILLMAN, acitizen of the UnitedStates, residing at Wabash, in the county of Wabash and State ofIndiana, have invented a new and useful Wrench, of which the followingis a specication.

The invent-ion relates to improvements in wrenches.

The object of the present invention is to improve the construction ofwrenches and to provide a simple, inexpensive, and efficient one whichwill be strong and durable and which will be capable of being readilyoperated to free the movable jaw from the shank to permit the wrench tobe quicklyadjusted to a nut or other object.

The invention consists in the construction and novel combination andarrangement of parts hereinafter fully described, illustrated in theaccompanying drawings, and pointed out in the claims hereto appended.

In the drawings, Figure 1 is a longitudinal sectional View of a WrenchVconstructed in accordance with this invention, the movable jaw beinginterlocked with the shank. Fig. 2 is a similar view, the parts beingarranged to permit the movable jaw to slide freely on the shank. Fig. 3is a transverse sectional view on the line 3 B'of Fig. 1. Fig. 4 is adetail View of the outer longitudinally movable wedge. Fig. 5 is asimilar View of the inner laterally-movable shank-engaging Wedge.

Like numerals of reference designate corresponding parts in all theiigures of the drawings.

1 designates a shank or bar rigidly connected at its outer end with astationary jaw 2 and provided at its inner longitudinal edge with teeth3, forming a ratchet and'adapted to be engaged by corresponding teeth 4ot' an inner laterally-movable wedge or pawl 5 of a sliding jaw 6. Thesliding jaw is adapted to move longitudinally of the shank 1 to arrangeit the desired distance from the stationary jaw for properly engaging anut or other object. The movable jaw 6 is provided with a longitudinalopening 7 to receive the shank 1, and its front portion 8 forms a casingfor the reception of the shank-engaging Wedge or pawl 5 and alongitudinally-movable actuatingwedge 9. The upper portion of themovable jaw 6 is provided with a socket 10, receiving a spring 11 ofspiral form, and the said spring engages the upper or outer end of thelongitudinally-movable Wedge 9 and is adapted to move the same towardthe inner end of the sliding j aw. The sliding jaw is also provided atthe inner side of the socket 10 With a wall 12, extending longitudinallyof it and terminating short of its center, to provide an open space forthe shank-engaging wedge, which is located between the longitudinal wall12 and the inner end of the sliding jaw. The

shank-engaging Wedge is provided at its inner face with the teeth 4, andthe said inner face is arranged approximately parallel With the adjacentface of the shank. The other face 13 of the wedge 5 is arranged at anangle and is adapted to abut against the angularly-disposed inner face14. of the wedge 9, which is connected slidably with the wedge 5 bymeans of a screw 15; but any other suitable fastening device may beemployed for this purpose. The outer face of the longitudinally-movablewedge 9 is provided with a recess 16 to receive the head of the screw15, and the inner portion of the longitudinally-movable wedge isprovided with a longitudinal slot 17, located at the back of the recessand receiving the stem or shank of the screw, which engages a threadedsocket of the wedge 5. By slidingly connecting the wedges in this mannerthe shank-engaging wedge will be moved inward and outward laterally ofthe movable jaw when the other wedge is reciprocated longitudinally. Themovable jaw is provided at its outer face with an opening 18, located0pposite the head of the screw and adapted to permit the blade of ascrew-driver to be readily introduced into the wrench for the purpose ofengaging the screw 15. The Wedge 9 is moved outward to the positionillustrated in Fig. 2 of the accompanying drawings to withdraw the wedge5 from the shank by means of a push-pin 1.9,extending through anaperture 2O of the inner end of the movable jaw and having its innerterminal threaded and engaging a threaded opening of thelongitudinally-movable Wedge 9. The inner threaded end of the push-pinis reduced to form a shoulder, and a coiled spring 22 is disposed on theouter portion of the push-pin and interposed between the head of IOO thesame and the inner end of the movable jaw to actuate the Wedge'. Whenthe pushpin is depressed, the Wedge 5 is disengaged from the shank andthe movable jaW is adapted to slide freely on the latter, and it may bequickly arranged in proper position for engaging a nut or other object.As soon as the push-pin is released the springs Will autom aticallyreciprocate the longitudinally-movable wedge 9 and carry the other Wedgeinto engagement With the shank. When the Wedge 5 is in engagement Withthe shank, the other Wedge is interposed between it and the front wallof the movable jaw to provide a solid structure and to prevent the Wedge5 from accidentally slipping. The shank-engaging wedge is provided atits inner end with a groove 23, adapted to receive the push-pin andenabling the shank-engaging Wedge to clear the same to prevent thepush-pin from beingA subjected to any strain or pressure when the Wrenchis in use.

It will be seen that the wrench is exceedingly simple and inexpensive inconstruction, that it is adapted to be quickly adjusted to engage itwith and disengage it from a nut or other object, and that it possessesgreat strength and durability and cannot become easily broken orotherwise get out of order.

As the movable jaw is adapted to slide freely on the shank when thetoothed Wedge is out of engagement with the same the shank may,

if desired7 be provided with a suitable stoppin for limiting the inwardmovement of the sliding jaw to prevent the same from accidentallyleaving the shank.

What I claim isl. A Wrench comprising a shank, a stationary jaw, amovable jaw, a laterally-n1ovable shank-engaging Wedge carried by themovable jaw, the longitudinally-movable Wedge, and means for slidinglyconnecting the longitudinally-movable Wedge with the shankengagingWedge, whereby the latter is positively carried out of engagement Withthe shank by the former, substantially as described.

2. A Wrench comprising a shank, a movable jaw, a laterally-movableshank-engaging Wedge, a longitudinally-movable wedge slidingly connectedwith the shank-engaging Wedge and adapted to move the same inward andoutward, a spring for actuating the longitudinally-movable Wedge tocarry the other Wedge into engagement with the shank, and a push-pinconnected With the longitudinallymovable Wedge, substantially asdescribed.

3. A Wrench comprising a shank, a movable jaW, a laterally-movableWedge, the longitudinally-movable Wedge having a recess and providedwith a longitudinal slot,a headed fastening device extending through theslot and mounted on the shank engaging Wedge, and having its headarranged Within the said recess whereby the longitudinallymovable Wedgeis capable of positively moving the other Wedge inward and outward,substantially as described.

4. A Wrench comprising the toothed shank, the shank-engaging Wedgeprovided with teeth and having a groove,the longitudinallymovable Wedgeslidingly connected with the shank-engaging Wedge, the push-pinextending through one end of the movable jaw and connected with thelongitudinally-movable Wedge, a coiled spring mounted in the other endof the movable jaw and engaging the said longitudinally-movable wedge,and a spring disposed on the push-pin and engaging the same,substantially as described.

In testimony that I claim the foregoing as my own I have hereto affixedmy signature in the presence of two Witnesses.

MARSHALL DAYTON 'll hIlllIAN.

Witnesses:

LAWRENCE Lnrroncn, ELIsHA MILLS.

